CEPHALOPODA. BERRY. 



229> 



Locking cartilages characteristically Ommastrephid in form. 

 Fins quite large ; triangular when taken separately ; together 

 sagittate and very slightly produced posteriorly ; their length 

 40-45%, their combined width 50-55% of the mantle length ; 

 point of widest expansion at about the anterior quarter ; 

 lateral angles rounded ; anterior margins convex, cut in next 

 the body to form a lobe ; posterior margins at first slightly 

 convex, then a little more strongly concave. 



Fig. 10. — Nofotodarvs gouldi ^ , nested outlines of bodies of five specimens 

 of various ages, dorsal aspect : 1— [.'i49] ; 2— [552] ; 3— [564] ; 4— [550] ; 

 5— [563]. 



